Eliza d



fitnittt %tattz haunt dtffitt.

ELIZA D. MURFEY, OF NEW YORK, N. Y., ASSIGNOR TU THE MANHATTAN PACKING-MANUFACTURING COMPANY, OF SAME PLACE.

Letters Patent No. 110,584, dated December '27, 1870.

IMPROVEMENT IN THE MANUFACTURE OF MATERIALS FOR JOURNALS, BEARINGS,AND PACKINGS.

The Schedule referred to in these Letters Patent and maklngpalt of the same.

I, ELIZA D. MURFEY, of New York, county of New York, State of New York, have invented an Improvement in the Manufacture of Bearing and Packing Materials, of which the following is a specification.

Nature and Object of the Invention.

My invention consists of a process too fully described hereafter to need preliminary explanation, whereby loose .fibers and filaments and powdered substances may be uniformly mixed and combined to produce materials for packings, bearings, &c.

General Description.

My improved process consists in combining fibers or filaments and powdered materials by depositing the loose fibers and powdered materials together in a uniform sheet or mass upon a suitable plate or surface, and then consolidating the mixture by the action of suitable liquids, by pressure, or otherwise.

In carrying my process into practical effect, a variety of means may be used; for instance, the two materials may be simultaneously or alternately sifted upon a plate, between which and a second and perforated plate they are clamped,'and then immersed ina suitable fluid, which, when fur or wool fibers are employed, may be water, as this causes a felting of the fibers so as to partially consolidate the mass of materials, pressure or other means being employed to obtain a more condensed product.

\Vhen what is known as shoddy-felt, cotton, or filaments which will not felt are used, the mixture should be saturated with melted paral'line, glycerine, or with a liquid having in solution rubber, balsam, or other substance which will cause the adhesion of the materials or cement them together, pressure being subsequently employed, if necessary, to consolidate the mass and expel the superfluous fluid. Althoughthe desired result may be thus obtained, I prefer to effect the deposit of the materials and the formation of the uniformly mixed mass by means of currents of air, in the manner I willnow proceed to describe:

With a box or case, h. vingat the top a detachable perforated plate or a sheet of wire-cloth, communicates a tube, connected with a'pump or other apparatus, by means of which'the air may be exhausted beneath the said plate; and above or adjacent to the the perforated plate by means of mechanical appliances, by their own gravity, or otherwise, I prefer, however, to employ currents of air discharged through bla'stpipes across the mouths of the hoppers in such a manner as to carry both the fibers and the powder simultaneously tothe plate, to which they will ad here, owing to the action of the air caused by exhausting the'same beneath the plate.

By regulating the force of the blasts, or the rate at which the contents pass from the hoppers, a sheet or mass, consisting of fibers and powder in any desired proportion, and uniformly intermingled, may be obtained. This is thenconsolidated, as before described.

Various fibers or filamentous materials, as hemp, cotton, wool, fur, or mixtnr'es'of the same may'be employed andcombined, in themanner aboye described, with plnmbago, soapstone, burnt I 'air, or other powdered substances, or with suitable compositions in a powderedstate, and the product may be employed for packings, bearings, 850., for steps for spindles, or, cut into rings, for washers, joint-packings, and similar purposes.

Claims.

1. The process herein described of combining .fila ments or fibers and powdered substances, that is, by

depositing the loose fibers and powder in a uniform witnesses.

ELIZA D. MURF-EY.

Witnesses:

'lnosr s Penman, LEON GEHR. 

